.common-problem {
    width: 897px;
    float: left;
    margin: 46px 0 0 66px;
}

.common-problem h3 {
    font-family: MicrosoftYaHei-Bold;
    font-size: 24px;
    padding-bottom: 50px;
    color: #333333;
    text-align: center;
}

.common-problem p {
    font-family: SimSun;
    font-size: 14px;
    font-weight: bold;
    /* line-height: 24px;
    设置行高会将文字上下距离都撑开 */
    margin-bottom: 20px;
    /* 不设置行高设置margin值会更加准确 */
    color: #333333;
    text-indent: 2em;
}

.common-problem li {
    list-style-type: decimal;
    font-family: SimSun;
    font-size: 14px;
    line-height: 32px;
    /* 罗列内容设置行高和margin/padding值与line-height效果一致但参数不同
    但文本内容有换行，行间距必须设置line-height */
    /* margin-bottom: 22px; */
    color: #666666;
    list-style-position: inside;
    text-indent: 2em;
}